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Ruiz-Matus S, Goldstein P. On the universality of viscosity in supersaturated binary aqueous sugar solutions: Cryopreservation by vitrification. Cryobiology 2024; 115:104886. [PMID: 38555011 DOI: 10.1016/j.cryobiol.2024.104886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/07/2024] [Accepted: 03/14/2024] [Indexed: 04/02/2024]
Abstract
Nowadays, the physical nature of supersaturated binary aqueous sugar solutions in the vicinity of the glass transition represents a very important issue due to their biological applications in cryopreservation of cells and tissues, food science and stabilization and storage of nano genetic drugs. We present the construction of the Supplemented Phase Diagram and the non-equilibrium nature of the undersaturated-supersaturated kinetic transition. The description of its thermodynamic nature is achieved through the study of behavior of their viscosity as temperature is lowered and concentration increased. In this work, we find a universal character for the viscosities of several sugar water solutions.
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Affiliation(s)
- Soledad Ruiz-Matus
- Department of Physics, Faculty of Science, National Autonomous University of México, 04510, Coyoacán, Ciudad de México, Mexico.
| | - Patricia Goldstein
- Department of Physics, Faculty of Science, National Autonomous University of México, 04510, Coyoacán, Ciudad de México, Mexico.
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2
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Slavkova Z, Yancheva D, Genova J. Phase behaviour and structural properties of SOPC model lipid system in a sucrose solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 304:123287. [PMID: 37633099 DOI: 10.1016/j.saa.2023.123287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 08/17/2023] [Accepted: 08/19/2023] [Indexed: 08/28/2023]
Abstract
Lipid membranes are an important component of the biological cell. The profound understanding of their structure and functionality, as well as, the influence of various biologically relevant admixtures on their main characteristics is of great importance for research and development in medicine and pharmacology. The effect of sugars on the behaviour of the membrane cell enjoys an ever-increasing interest as they are biologically significant substances. We have studied the influence of the disaccharide sucrose on the physicochemical properties of SOPC (1-stearoyl-2-oleoyl-sn- glycero-3-phosphocholine) lipid system aiming to gain better understanding of the mechanisms of the interaction between both substances. For that purpose, we have used differential scanning calorimetry and Fourier-transform infrared spectroscopy. Our results show that adding sugar up to 300 mM concentration substantially alters the thermodynamic and structural properties of SOPC. The DSC thermograms at heating reveal a general lowering of the SOPC transition temperature Tm from gel to liquid crystalline phase (main phase transition, ordered-disordered phase transition) in the presence of sugar. The corresponding peaks are smeared and harder to trace. In agreement with this, a gradual decrease of the enthalpy values up to 300 mM was measured. The IR spectroscopy study provided spectral evidence for two states of hydration of the phosphate groups in the sugar-SOPC model systems suggesting a mechanism of interaction where only part of the phospholipid headgroups are hydrogen bonded to the sugar molecules. The obtained results are in good agreement with various earlier data including results about the bending elasticity moduli, as well as, some theoretical simulations on the sugar-lipid interactions. The current results also reinforce the potential of sucrose to be used as a cell protector against drought at, both, high and low temperatures.
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Affiliation(s)
- Zdravka Slavkova
- G. Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussée blvd., 1784 Sofia, Bulgaria; Joint Institute for Nuclear Research, 6 Joliot-Curie St., Dubna, Moscow Region 141980, Russia
| | - Denitsa Yancheva
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev St., Build. 9, 1113 Sofia, Bulgaria.
| | - Julia Genova
- G. Nadjakov Institute of Solid State Physics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussée blvd., 1784 Sofia, Bulgaria
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3
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Penkov NV. Terahertz spectroscopy as a method for investigation of hydration shells of biomolecules. Biophys Rev 2023; 15:833-849. [PMID: 37974994 PMCID: PMC10643733 DOI: 10.1007/s12551-023-01131-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 08/30/2023] [Indexed: 11/19/2023] Open
Abstract
The hydration of biomolecules is one of the fundamental processes underlying the construction of living matter. The formation of the native conformation of most biomolecules is possible only in an aqueous environment. At the same time, not only water affects the structure of biomolecules, but also biomolecules affect the structure of water, forming hydration shells. However, the study of the structure of biomolecules is given much more attention than their hydration shells. A real breakthrough in the study of hydration occurred with the development of the THz spectroscopy method, which showed that the hydration shell of biomolecules is not limited to 1-2 layers of strongly bound water, but also includes more distant areas of hydration with altered molecular dynamics. This review examines the fundamental features of the THz frequency range as a source of information about the structural and dynamic characteristics of water that change during hydration. The applied approaches to the study of hydration shells of biomolecules based on THz spectroscopy are described. The data on the hydration of biomolecules of all main types obtained from the beginning of the application of THz spectroscopy to the present are summarized. The emphasis is placed on the possible participation of extended hydration shells in the realization of the biological functions of biomolecules and at the same time on the insufficient knowledge of their structural and dynamic characteristics.
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Affiliation(s)
- Nikita V. Penkov
- Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, Institute of Cell Biophysics RAS, 142290 Pushchino, Russia
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4
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Dordevic S, Dordevic D, Tesikova K, Tremlova B. Effect of Trehalose/OEO/Tween 80/Tween 20 Addition on Physical Stability of Edible Packaging during Storage in Different Humidity Conditions. Foods 2023; 12:2903. [PMID: 37569172 PMCID: PMC10418451 DOI: 10.3390/foods12152903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
Edible packaging has been a topic of much discussion during recent years, mainly due to its lower environmental impact. This study aimed to investigate the properties of an edible packaging made from a combination of carrageenan, orange essential oil (OEO), and trehalose (Tre) under different humidity conditions. The films were analyzed based on their water content, solubility, and textural properties, such as strength and breaking strain. The results of the study showed that the addition of trehalose reduced the water content and increased the strength of the packaging, regardless of the humidity conditions. The inclusion of orange essential oil also contributed to lower water content, which led to more water-resistant packaging (during standard humidity conditions (45%)-c: 15.31%; Tre3OT80: 4.04%, Tre1OT80: 4.48%). The findings of this study have important implications for the production of stable and environmentally friendly edible packaging. The results demonstrate the potential of trehalose and orange essential oil as additives to enhance the properties of edible packaging, particularly in terms of its resistance to moisture. The best results were found in Tre1OT80 and Tre3OT80 samples. Moreover, the study emphasizes the importance of considering storage conditions in the development of edible packaging, as different humidity levels can significantly affect the packaging's properties and shelf life. The findings have practical applications for the food industry, particularly in the development of sustainable packaging solutions and for further studies where the application of this packaging can be analyzed for different foodstuffs.
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Affiliation(s)
- Simona Dordevic
- Department of Plant Origin Food Sciences, Faculty of Veterinary Hygiene and Ecology, University of Veterinary Sciences Brno, Palackeho tr. 1946/1, 612 42 Brno, Czech Republic; (D.D.); (K.T.); (B.T.)
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5
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Xu J, You X, Leng Y, Li Y, Lu Z, Huang Y, Chen M, Zhang J, Song T, Liu T. Identification and Alternative Splicing Profile of the Raffinose synthase Gene in Grass Species. Int J Mol Sci 2023; 24:11120. [PMID: 37446297 DOI: 10.3390/ijms241311120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/30/2023] [Accepted: 07/02/2023] [Indexed: 07/15/2023] Open
Abstract
Raffinose synthase (Rafs) is an important enzyme in the synthesis pathway of raffinose from sucrose and galactinol in higher plants and is involved in the regulation of seed development and plant responses to abiotic stresses. In this study, we analyzed the Rafs families and profiled their alternative splicing patterns at the genome-wide scale from 10 grass species representing crops and grasses. A total of 73 Rafs genes were identified from grass species such as rice, maize, foxtail millet, and switchgrass. These Rafs genes were assigned to six groups based the phylogenetic analysis. We compared the gene structures, protein domains, and expression patterns of Rafs genes, and also unraveled the alternative transcripts of them. In addition, different conserved sequences were observed at these putative splice sites among grass species. The subcellular localization of PvRafs5 suggested that the Rafs gene was expressed in the cytoplasm or cell membrane. Our findings provide comprehensive knowledge of the Rafs families in terms of genes and proteins, which will facilitate further functional characterization in grass species in response to abiotic stress.
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Affiliation(s)
- Junhao Xu
- College of Grassland Agriculture, Northwest A&F University, Yangling 712100, China
| | - Xiangkai You
- College of Grassland Agriculture, Northwest A&F University, Yangling 712100, China
| | - Yanan Leng
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210000, China
| | - Youyue Li
- College of Grassland Agriculture, Northwest A&F University, Yangling 712100, China
| | - Zeyu Lu
- College of Grassland Agriculture, Northwest A&F University, Yangling 712100, China
| | - Yinan Huang
- College of Grassland Agriculture, Northwest A&F University, Yangling 712100, China
| | - Moxian Chen
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210000, China
| | - Jianhua Zhang
- Department of Biology, Hong Kong Baptist University, Kowloon, Hong Kong
- State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Tao Song
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210000, China
| | - Tieyuan Liu
- College of Grassland Agriculture, Northwest A&F University, Yangling 712100, China
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Wang T, Wang Y, Zhao J, Kong J, Zhang L, Qi S, Chen J, Chen Z, Zeng W, Sun W. Identification, Characterization and Expression Profiling of the RS Gene Family during the Withering Process of White Tea in the Tea Plant ( Camellia sinensis) Reveal the Transcriptional Regulation of CsRS8. Int J Mol Sci 2022; 24:ijms24010202. [PMID: 36613645 PMCID: PMC9820808 DOI: 10.3390/ijms24010202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/17/2022] [Accepted: 12/18/2022] [Indexed: 12/25/2022] Open
Abstract
Raffinose synthetase (RS) is a key enzyme in the process of raffinose (Raf) synthesis and is involved in plant development and stress responses through regulating Raf content. As a sweetener, Raf makes an important contribution to the sweet taste of white tea. However, studies on the identification, analysis and transcriptional regulation of CsRSs (Camellia sinensis RS genes) are still lacking. In this study, nine CsRSs were identified from the tea plant (Camellia sinensis) genome database. The CsRSs were classified into five groups in the phylogenetic tree. Expression level analysis showed that the CsRSs varied in different parts of the tea plant. Transcriptome data showed that CsRSs could respond to persistent drought and cold acclimation. Except for CsRS5 and CsRS9, the expression pattern of all CsRSs increased at 12 h and decreased at 30 h during the withering process of white tea, consistent with the change trend of the Raf content. Furthermore, combining yeast one-hybrid assays with expression analysis, we found that CsDBB could potentially regulate the expression of CsRS8. Our results provide a new perspective for further research into the characterization of CsRS genes and the formation of the white tea flavour.
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Affiliation(s)
- Tao Wang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yiqing Wang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jiamin Zhao
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jiumei Kong
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Lingzhi Zhang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Siyu Qi
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jiajia Chen
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhidan Chen
- Anxi College of Tea Science, Fujian Agriculture and Forestry University, Quanzhou 362000, China
| | - Wen Zeng
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Correspondence: (W.Z.); (W.S.)
| | - Weijiang Sun
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Correspondence: (W.Z.); (W.S.)
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7
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Stabilization of insect cell membranes and soluble enzymes by accumulated cryoprotectants during freezing stress. Proc Natl Acad Sci U S A 2022; 119:e2211744119. [PMID: 36191219 PMCID: PMC9564827 DOI: 10.1073/pnas.2211744119] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Most multicellular organisms are freeze sensitive, but the ability to survive freezing of the extracellular fluids evolved in several vertebrate ectotherms, some plants, and many insects. Here, we test the coupled hypotheses that are perpetuated in the literature: that irreversible denaturation of proteins and loss of biological membrane integrity are two ultimate molecular mechanisms of freezing injury in freeze-sensitive insects and that seasonally accumulated small cryoprotective molecules (CPs) stabilize proteins and membranes against injury in freeze-tolerant insects. Using the drosophilid fly, Chymomyza costata, we show that seven different soluble enzymes exhibit no or only partial loss of activity upon lethal freezing stress applied in vivo to whole freeze-sensitive larvae. In contrast, the enzymes lost activity when extracted and frozen in vitro in a diluted buffer solution. This loss of activity was fully prevented by adding low concentrations of a wide array of different compounds to the buffer, including C. costata native CPs, other metabolites, bovine serum albumin (BSA), and even the biologically inert artificial compounds HistoDenz and Ficoll. Next, we show that fat body plasma membranes lose integrity when frozen in vivo in freeze-sensitive but not in freeze-tolerant larvae. Freezing fat body cells in vitro, however, resulted in loss of membrane integrity in both freeze-sensitive and freeze-tolerant larvae. Different additives showed widely different capacities to protect membrane integrity when added to in vitro freezing media. A complete rescue of membrane integrity in freeze-tolerant larvae was observed with a mixture of proline, trehalose, and BSA.
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8
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Kubisch C, Kövilein A, Aliyu H, Ochsenreither K. RNA-Seq Based Transcriptome Analysis of Aspergillus oryzae DSM 1863 Grown on Glucose, Acetate and an Aqueous Condensate from the Fast Pyrolysis of Wheat Straw. J Fungi (Basel) 2022; 8:jof8080765. [PMID: 35893132 PMCID: PMC9394295 DOI: 10.3390/jof8080765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 11/16/2022] Open
Abstract
Due to its acetate content, the pyrolytic aqueous condensate (PAC) formed during the fast pyrolysis of wheat straw could provide an inexpensive substrate for microbial fermentation. However, PAC also contains several inhibitors that make its detoxification inevitable. In our study, we examined the transcriptional response of Aspergillus oryzae to cultivation on 20% detoxified PAC, pure acetate and glucose using RNA-seq analysis. Functional enrichment analysis of 3463 significantly differentially expressed (log2FC >2 & FDR < 0.05) genes revealed similar metabolic tendencies for both acetate and PAC, as upregulated genes in these cultures were mainly associated with ribosomes and RNA processing, whereas transmembrane transport was downregulated. Unsurprisingly, metabolic pathway analysis revealed that glycolysis/gluconeogenesis and starch and sucrose metabolism were upregulated for glucose, whereas glyoxylate and the tricarboxylic acid (TCA) cycle were important carbon utilization pathways for acetate and PAC, respectively. Moreover, genes involved in the biosynthesis of various amino acids such as arginine, serine, cysteine and tryptophan showed higher expression in the acetate-containing cultures. Direct comparison of the transcriptome profiles of acetate and PAC revealed that pyruvate metabolism was the only significantly different metabolic pathway and was overexpressed in the PAC cultures. Upregulated genes included those for methylglyoxal degradation and alcohol dehydrogenases, which thus represent potential targets for the further improvement of fungal PAC tolerance.
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9
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Hopanoids Confer Robustness to Physicochemical Variability in the Niche of the Plant Symbiont Bradyrhizobium diazoefficiens. J Bacteriol 2022; 204:e0044221. [PMID: 35657706 DOI: 10.1128/jb.00442-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Rhizobia are a group of bacteria that increase soil nitrogen content through symbiosis with legume plants. The soil and symbiotic host are potentially stressful environments, and the soil will likely become even more stressful as the climate changes. Many rhizobia within the Bradyrhizobium clade, like Bradyrhizobium diazoefficiens, possess the genetic capacity to synthesize hopanoids, steroid-like lipids similar in structure and function to cholesterol. Hopanoids are known to protect against stresses relevant to the niche of B. diazoefficiens. Paradoxically, mutants unable to synthesize the extended class of hopanoids participate in symbioses with success similar to that of the wild type, despite being delayed in root nodule initiation. Here, we show that in B. diazoefficiens, the growth defects of extended-hopanoid-deficient mutants can be at least partially compensated for by the physicochemical environment, specifically, by optimal osmotic and divalent cation concentrations. Through biophysical measurements of lipid packing and membrane permeability, we show that extended hopanoids confer robustness to environmental variability. These results help explain the discrepancy between previous in-culture and in planta results and indicate that hopanoids may provide a greater fitness advantage to rhizobia in the variable soil environment than the more controlled environments within root nodules. To improve the legume-rhizobium symbiosis through either bioengineering or strain selection, it will be important to consider the full life cycle of rhizobia, from soil to symbiosis. IMPORTANCE Rhizobia, such as B. diazoefficiens, play an important role in the nitrogen cycle by making nitrogen gas bioavailable through symbiosis with legume plants. As climate change threatens soil health, this symbiosis has received increased attention as a more sustainable source of soil nitrogen than the energy-intensive Haber-Bosch process. Efforts to use rhizobia as biofertilizers have been effective; however, long-term integration of rhizobia into the soil community has been less successful. This work represents a small step toward improving the legume-rhizobium symbiosis by identifying a cellular component-hopanoid lipids-that confers robustness to environmental stresses rhizobia are likely to encounter in soil microenvironments as sporadic desiccation and flooding events become more common.
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10
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Marcantonini G, Bartolini D, Zatini L, Costa S, Passerini M, Rende M, Luca G, Basta G, Murdolo G, Calafiore R, Galli F. Natural Cryoprotective and Cytoprotective Agents in Cryopreservation: A Focus on Melatonin. Molecules 2022; 27:3254. [PMID: 35630729 PMCID: PMC9145333 DOI: 10.3390/molecules27103254] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 05/13/2022] [Accepted: 05/15/2022] [Indexed: 01/31/2023] Open
Abstract
Cryoprotective and cytoprotective agents (Cytoprotective Agents) are fundamental components of the cryopreservation process. This review presents the essentials of the cryopreservation process by examining its drawbacks and the role of cytoprotective agents in protecting cell physiology. Natural cryoprotective and cytoprotective agents, such as antifreeze proteins, sugars and natural deep eutectic systems, have been compared with synthetic ones, addressing their mechanisms of action and efficacy of protection. The final part of this article focuses melatonin, a hormonal substance with antioxidant properties, and its emerging role as a cytoprotective agent for somatic cells and gametes, including ovarian tissue, spermatozoa and spermatogonial stem cells.
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Affiliation(s)
- Giada Marcantonini
- Department of Pharmaceutical Sciences, Lipidomics and Micronutrient Vitamins Laboratory and Human Anatomy Laboratory, University of Perugia, 06126 Perugia, Italy; (G.M.); (D.B.); (L.Z.)
| | - Desirée Bartolini
- Department of Pharmaceutical Sciences, Lipidomics and Micronutrient Vitamins Laboratory and Human Anatomy Laboratory, University of Perugia, 06126 Perugia, Italy; (G.M.); (D.B.); (L.Z.)
| | - Linda Zatini
- Department of Pharmaceutical Sciences, Lipidomics and Micronutrient Vitamins Laboratory and Human Anatomy Laboratory, University of Perugia, 06126 Perugia, Italy; (G.M.); (D.B.); (L.Z.)
| | - Stefania Costa
- Angelantoni Life Science S.r.l., 06056 Massa Martana, Italy; (S.C.); (M.P.)
| | | | - Mario Rende
- Department of Medicine and Surgery, Section of Human, Clinic and Forensic Anatomy, University of Perugia, 06132 Perugia, Italy;
| | - Giovanni Luca
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (G.L.); (G.B.); (G.M.); (R.C.)
- Centro Biotecnologico Internazionale di Ricerca Traslazionale ad Indirizzo Endocrino, Metabolico ed Embrio-Riproduttivo (CIRTEMER), 06132 Perugia, Italy
| | - Giuseppe Basta
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (G.L.); (G.B.); (G.M.); (R.C.)
- Centro Biotecnologico Internazionale di Ricerca Traslazionale ad Indirizzo Endocrino, Metabolico ed Embrio-Riproduttivo (CIRTEMER), 06132 Perugia, Italy
| | - Giuseppe Murdolo
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (G.L.); (G.B.); (G.M.); (R.C.)
| | - Riccardo Calafiore
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (G.L.); (G.B.); (G.M.); (R.C.)
- Centro Biotecnologico Internazionale di Ricerca Traslazionale ad Indirizzo Endocrino, Metabolico ed Embrio-Riproduttivo (CIRTEMER), 06132 Perugia, Italy
| | - Francesco Galli
- Department of Pharmaceutical Sciences, Lipidomics and Micronutrient Vitamins Laboratory and Human Anatomy Laboratory, University of Perugia, 06126 Perugia, Italy; (G.M.); (D.B.); (L.Z.)
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11
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Deryabin AN, Trunova TI. Colligative Effects of Solutions of Low-Molecular Sugars and Their Role in Plants under Hypothermia. BIOL BULL+ 2022. [DOI: 10.1134/s1062359021060042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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O'Connell KF. Cryopreservation of C. elegans and Other Nematodes with Dimethyl Sulfoxide and Trehalose. Methods Mol Biol 2022; 2468:43-49. [PMID: 35320559 DOI: 10.1007/978-1-0716-2181-3_3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
One of the key attributes that has contributed to the popularity of Caenorhabditis elegans as a model system is its ability to survive freezing. By preserving stocks at ultralow temperature, researchers have been able to generate an unlimited number of strains without the burden of constantly maintaining them. This has facilitated the use of large-scale forward genetic screens and CRISPR-mediated genome editing where large numbers of novel and informative mutants can be generated. Traditionally, C. elegans and other nematodes were frozen using glycerol as a cryoprotectant. While effective, a large majority of animals do not survive a typical freeze-thaw cycle. Here I describe an alternative method based on the popular combination of DMSO and trehalose as a cryoprotectant. This method allows the survival of large numbers of worms and effectively protects most developmental stages including adults.
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Affiliation(s)
- Kevin F O'Connell
- Laboratory of Biochemistry and Genetics, National Institute of Diabetes & Digestive and Kidney Diseases, Bethesda, MD, USA.
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13
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Huang Y, Jiang D, Ren G, Yin Y, Sun Y, Liu T, Liu C. De Novo Production of Glycyrrhetic Acid 3-O-mono- β-D-glucuronide in Saccharomyces cerevisiae. Front Bioeng Biotechnol 2021; 9:709120. [PMID: 34888299 PMCID: PMC8650490 DOI: 10.3389/fbioe.2021.709120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 11/04/2021] [Indexed: 12/21/2022] Open
Abstract
Glycyrrhetic acid 3-O-mono-β-D-glucuronide (GAMG) is a rare compound in licorice and its short supply limits the wide applications in the pharmaceutical, cosmetic, and food industries. In this study, de novo biosynthesis of GAMG was achieved in engineered Saccharomyces cerevisiae strains based on the CRISPR/Cas9 genome editing technology. The introduction of GAMG biosynthetic pathway resulted in the construction of a GAMG-producing yeast strain for the first time. Through optimizing the biosynthetic pathway, improving the folding and catalysis microenvironment for cytochrome P450 enzymes (CYPs), enhancing the supply of UDP-glucuronic acid (UDP-GlcA), preventing product degradation, and optimizing the fermentation conditions, the production of GAMG was increased from 0.02 μg/L to 92.00 μg/L in shake flasks (4,200-fold), and the conversion rate of glycyrrhetic acid (GA) to GAMG was higher than 56%. The engineered yeast strains provide an alternative approach for the production of glycosylated triterpenoids.
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Affiliation(s)
- Ying Huang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Dan Jiang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Guangxi Ren
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yan Yin
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yifan Sun
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Tengfei Liu
- Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China
| | - Chunsheng Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
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14
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Khodajou-Masouleh H, Shahangian SS, Attar F, H Sajedi R, Rasti B. Characteristics, dynamics and mechanisms of actions of some major stress-induced biomacromolecules; addressing Artemia as an excellent biological model. J Biomol Struct Dyn 2020; 39:5619-5637. [PMID: 32734830 DOI: 10.1080/07391102.2020.1796793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Stress tolerance is one of the most prominent and interesting topics in biology since many macro- and micro-adaptations have evolved in resistant organisms that are worth studying. When it comes to confronting various environmental stressors, the extremophile Artemia is unrivaled in the animal kingdom. In the present review, the evolved molecular and cellular basis of stress tolerance in resistant biological systems are described, focusing on Artemia cyst as an excellent biological model. The main purpose of the review is to discuss how the structure and physicochemical characteristics of protective factors such as late embryogenesis abundant proteins (LEAPs), small heat shock proteins (sHSPs) and trehalose are related to their functions and by which mechanisms, they exert their functions. In addition, some metabolic depressors in Artemia encysted embryos are also mentioned, indirectly playing important roles in stress tolerance. Importantly, a great deal of attention is given to the LEAPs, exhibiting distinctive folding behaviors and mechanisms of actions. For instance, molecular shield function, chaperone-like activity, moonlighting property, sponging and snorkeling capabilities of the LEAPs are delineated here. Moreover, the molecular interplay between some of these factors is mentioned, leading to their synergistic effects. Interestingly, Artemia life cycle adapts to environmental conditions. Diapause is the defense mode of this life cycle, safeguarding Artemia encysted embryos against various environmental stressors. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | - S Shirin Shahangian
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | - Farnoosh Attar
- Department of Biology, Faculty of Food Industry & Agriculture, Standard Research Institute (SRI), Karaj, Iran
| | - Reza H Sajedi
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Behnam Rasti
- Department of Microbiology, Faculty of Basic Sciences, Lahijan Branch, Islamic Azad University (IAU), Lahijan, Guilan, Iran
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Bottrel M, Hidalgo M, Mogas T, Pereira B, Ortiz I, Díaz-Jiménez M, Consuegra C, Morató R, Dorado J. One-step warming does not affect the in vitro viability and cryosurvival of cryotop-vitrified donkey embryos. Theriogenology 2020; 152:47-52. [PMID: 32361488 DOI: 10.1016/j.theriogenology.2020.04.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/11/2020] [Accepted: 04/18/2020] [Indexed: 11/15/2022]
Abstract
The objective of this study was to compare the effects of two warming protocols (three-step vs. one-step dilution) on embryo quality, post-warming embryo survival and embryo cell viability of donkey embryos vitrified by the Cryotop method. Twenty, Day 7-8, grade 1-2 donkey embryos were measured, morphologically evaluated and vitrified using the Cryotop technique. Embryos were then randomly warmed using two different warming procedures: (i) W3 (three-step dilution; n = 11): embryos were warmed in 1 M, 0.5 M and 0 M sucrose, and (ii) W1/0.5 (one-step dilution; n = 9): embryos were warmed directly in 0.5 M sucrose. After 3 and 24 h of warming, the embryos were measured and evaluated for their morphology, developmental stage and viability (Propidium Iodide-Hoechst 33,342 dyes). Although both treatments decreased embryo quality after warming (P < 0.05), no significant differences (P > 0.05) were observed between protocols in terms of post-warming embryo quality, diameter and embryo survival. Greater percentages of dead cells (P < 0.001) were observed when embryos were warmed directly in 0.5 M sucrose (one-step dilution) when compared to the three-step protocol. The percentage of ruptured embryos was 27.3% and 0% in W3 and W1/0.5 protocols (P = 0.0893), respectively. In conclusion, warming Cryotop-vitrified donkey embryos directly in 0.5 M sucrose had no negative effects on embryo quality and post-warming embryo survival. Moreover, one-step protocol may help to prevent rupture when donkey embryos warmed directly in 0.5 M sucrose. These results observed in vitro must be verified by embryo transfer.
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Affiliation(s)
- M Bottrel
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - M Hidalgo
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - T Mogas
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, 08193, Cerdanyola Del Vallès, Spain
| | - B Pereira
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - I Ortiz
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - M Díaz-Jiménez
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - C Consuegra
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain
| | - R Morató
- Department of Animal Medicine and Surgery, Autonomous University of Barcelona, 08193, Cerdanyola Del Vallès, Spain
| | - J Dorado
- Veterinary Reproduction Group, Department of Animal Medicine and Surgery. Faculty of Veterinary Medicine, University of Cordoba, 14071, Cordoba, Spain.
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KALITA KRISHNA, DEKA BC, BISWAS RK, BARUA PM, BORAH P, DUTTA DJ, DAS SK. Effect of supplementation of vitrification solution on post-thaw survivability rate of porcine follicular oocytes. THE INDIAN JOURNAL OF ANIMAL SCIENCES 2019. [DOI: 10.56093/ijans.v89i8.93017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Oocytes (510) with two or more cumulus cell layers adhered to zona pellucida obtained by aspiration from follicles (2–8 mm dia) of 127 abattoir porcine ovaries were utilized to study the effect of supplementation of 0.5 M sucrose (Suc), 50 mg/ml polyvinyl pyrrolidone (PVP) and Suc + PVP into two different vitrification solutions, i.e. 35% concentration of both ethylene glycol (EG)+ propylene glycol (PG) and EG + dimethyl sulphoxide (DMSO). Vitrified post-thaw oocytes with intact zona pellucida and vitelline membrane, normal spherical shape and dark and evenly granulated cytoplasm under a stereo-zoom microscope were considered as viable. Out of the three supplements treatments, supplementation with sucrose + PVP combination and sucrose alone resulted in significantly higher mean post-thaw survivability rate of vitrified oocytes both for EG + PG and EG + DMSO as compared to the supplementation with PVP alone. It was concluded that addition of sucrose alone or in combination with PVP in vitrification solution, significantly improved survivability of vitrified porcine follicular oocytes.
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Raffo D, Perez Tito L, Pes ME, Fernandez Sasso D. Evaluation of DMSO dextrose as a suitable alternative for DMSO dextran in cord blood cryopreservation. Vox Sang 2019; 114:283-289. [PMID: 30734294 DOI: 10.1111/vox.12755] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 11/21/2018] [Accepted: 01/07/2019] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND OBJECTIVES Umbilical cord blood is considered an alternative source of hematopoietic stem cells. Standard banking procedures use 50/55% DMSO in dextran 40 for cryopreservation and dextran-based solutions for thawing, however, due to the potential risk of crystallization of dextran, dextran 40 approved for clinical use has become limited or unavailable. This affects cryopreservation and thawing procedures. Carbohydrates, in particular sucrose, trehalose and glucose, have been shown to be effective in reducing cell damage during dehydration and have cryoprotective potential. We aim to study a 50/55% DMSO in 5% dextrose cryopreservation solution as an alternative to DMSO dextran. MATERIALS AND METHODS Eighteen samples were divided into two aliquots and cryopreserved, one using standard solution and the other with DMSO dextrose experimental solution. Both aliquots were thawed and diluted with PBS or saline. Total nucleated cells counts, 7-AAD viability of CD45+ cells and recovery of CD34+ viable cells were assessed on thawed samples and compared between pair of aliquots. RESULTS No differences were observed in the total nucleated cells recovery between cryopreservation solutions, however, higher viability and CD34+ viable cells recoveries were observed using the experimental solution. CONCLUSION Results showed that DMSO dextrose cryopreservation solution had better results than the standard solution when thawed in an isotonic solution. This indicates that DMSO dextrose is probably a better alternative for direct infusion or when dextran thawing solutions are unavailable. Viability of CD45+ cells and recovery of CD34+ viable cells have positive correlation with engraftment, highlighting the relevance of the optimization of the cryopreservation and thawing process.
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Abstract
Previous studies have shown that pretreatment of corn slurries using ultrasound improves starch release and ethanol yield during biofuel production. However, studies on its effects on the mass transfer of substrates and products during fermentation have shown that it can have both beneficial and inhibitory effects. In this study, the effects of ultrasound on mass transfer limitations during fermentation were examined. Calculation of the external and intraparticle observable moduli under a range of conditions indicate that no external or intraparticle mass transfer limitations should exist for the mass transfer of glucose, ethanol, or carbon dioxide. Fermentations of glucose to ethanol using Saccharomyces cerevisiae were conducted at different ultrasound intensities to examine its effects on glucose uptake, ethanol production, and yeast population and viability. Four treatments were compared: direct ultrasound at intensities of 23 and 32 W/L, indirect ultrasound (1.4 W/L), and no-ultrasound. Direct and indirect ultrasound had negative effects on yeast performance and viability, and reduced the rates of glucose uptake and ethanol production. These results indicate that ultrasound during fermentation, at the levels applied, is inhibitory and not expected to improve mass transfer limitations.
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Li Y, Li S, Thodey K, Trenchard I, Cravens A, Smolke CD. Complete biosynthesis of noscapine and halogenated alkaloids in yeast. Proc Natl Acad Sci U S A 2018; 115:E3922-E3931. [PMID: 29610307 PMCID: PMC5924921 DOI: 10.1073/pnas.1721469115] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Microbial biosynthesis of plant natural products from simple building blocks is a promising approach toward scalable production and modification of high-value compounds. The pathway for biosynthesis of noscapine, a potential anticancer compound, from canadine was recently elucidated as a 10-gene cluster from opium poppy. Here we demonstrate the de novo production of noscapine in Saccharomyces cerevisiae, through the reconstruction of a biosynthetic pathway comprising over 30 enzymes from plants, bacteria, mammals, and yeast itself, including 7 plant endoplasmic reticulum (ER)-localized enzymes. Optimization directed to tuning expression of pathway enzymes, host endogenous metabolic pathways, and fermentation conditions led to an over 18,000-fold improvement from initial noscapine titers to ∼2.2 mg/L. By feeding modified tyrosine derivatives to the optimized noscapine-producing strain we further demonstrated microbial production of halogenated benzylisoquinoline alkaloids. This work highlights the potential for microbial biosynthetic platforms to support the synthesis of valuable and novel alkaloid compounds, which can advance alkaloid-based drug discovery and development.
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Affiliation(s)
- Yanran Li
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA 92521
| | - Sijin Li
- Department of Bioengineering, Stanford University, Stanford, CA 94305
| | | | | | - Aaron Cravens
- Department of Bioengineering, Stanford University, Stanford, CA 94305
| | - Christina D Smolke
- Department of Bioengineering, Stanford University, Stanford, CA 94305;
- Chan Zuckerberg Biohub, San Francisco, CA 94158
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20
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Choi JH, Lee H, Choi HR, Cho M. Graph Theory and Ion and Molecular Aggregation in Aqueous Solutions. Annu Rev Phys Chem 2018; 69:125-149. [DOI: 10.1146/annurev-physchem-050317-020915] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jun-Ho Choi
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science, Seoul 02841, Republic of Korea
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea
- Current affiliation: Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - Hochan Lee
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science, Seoul 02841, Republic of Korea
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea
| | - Hyung Ran Choi
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science, Seoul 02841, Republic of Korea
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea
| | - Minhaeng Cho
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science, Seoul 02841, Republic of Korea
- Department of Chemistry, Korea University, Seoul 02841, Republic of Korea
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21
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Liu J, Chen C, Li W. Protective mechanisms of α,α-trehalose revealed by molecular dynamics simulations. MOLECULAR SIMULATION 2017. [DOI: 10.1080/08927022.2017.1342126] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Jing Liu
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian, China
| | - Cong Chen
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian, China
| | - Weizhong Li
- Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian, China
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Odintsova NA, Boroda AV, Maiorova MA, Yakovlev KV. The death pathways in mussel larval cells after a freeze-thaw cycle. Cryobiology 2017; 77:41-49. [PMID: 28564580 DOI: 10.1016/j.cryobiol.2017.05.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 04/28/2017] [Accepted: 05/27/2017] [Indexed: 11/25/2022]
Abstract
We analyzed cell viability, caspase activity, plasma membrane alterations and cell ultrastructure morphology to estimate the morphological and biochemical alterations that occur in bivalve molluscan cell cultures during cryopreservation. The use of 5% dymethyl sulfoxide as a cryoprotectant resulted in greater cell survival and a scarcity of destroyed cells lacking cytosol among dead cells. In this case, almost all cells died through necrosis or apoptosis, which appeared to increase in mussel cell cultures after a freeze-thaw cycle. Apoptosis was not a main death pathway in mussel cells, but it was induced in a significant part of these cells (up to 24%) immediately after thawing and depended mostly on the cryoprotectant used. Regardless of the type of the used cryoprotectant, we observed some nuclear aberrations in cells after freezing-thawing, such as few multipolar mitoses or the absence of a division spindle in mitotic cells. After analyzing different methods for assessing cell damage, the best results were obtained from optimal approaches that could provide information regarding the cell disruption level after freezing-thawing and could be considered for future studies.
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Affiliation(s)
- Nelly A Odintsova
- Laboratory of Cytotechnology, National Scientific Center of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690041, Russia; Far Eastern Federal University, Vladivostok 690922, Russia.
| | - Andrey V Boroda
- Laboratory of Cytotechnology, National Scientific Center of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690041, Russia
| | - Mariia A Maiorova
- Laboratory of Cytotechnology, National Scientific Center of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690041, Russia; Far Eastern Federal University, Vladivostok 690922, Russia
| | - Konstantin V Yakovlev
- Laboratory of Cytotechnology, National Scientific Center of Marine Biology, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690041, Russia
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Elliott GD, Wang S, Fuller BJ. Cryoprotectants: A review of the actions and applications of cryoprotective solutes that modulate cell recovery from ultra-low temperatures. Cryobiology 2017; 76:74-91. [DOI: 10.1016/j.cryobiol.2017.04.004] [Citation(s) in RCA: 180] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 04/07/2017] [Accepted: 04/16/2017] [Indexed: 02/08/2023]
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24
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Hata T, Sato T, Ichikawa T, Morimitsu Y. Antifungal Activity of Protamine Salmine Hydrochloride and ε-Poly- l-Lysine in Actual Food Systems, Rice- or Wheat-Based Confectioneries. J FOOD PROCESS PRES 2016. [DOI: 10.1111/jfpp.12700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Tomomi Hata
- Department of Food and Nutritional Sciences, The Graduate School of Humanities and Sciences; Ochanomizu University; Bunkyo-ku Tokyo Japan
- Asama Chemical Co., Ltd.; Nihonbashi, Chuo-ku Tokyo Japan
| | - Toyoki Sato
- Asama Chemical Co., Ltd.; Nihonbashi, Chuo-ku Tokyo Japan
| | | | - Yasujiro Morimitsu
- Department of Food and Nutritional Sciences, The Graduate School of Humanities and Sciences; Ochanomizu University; Bunkyo-ku Tokyo Japan
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González C, Esteban R, Canals C, Muñiz-Díaz E, Nogués N. Stabilization of Transfected Cells Expressing Low-Incidence Blood Group Antigens: Novel Methods Facilitating Their Use as Reagent-Cells. PLoS One 2016; 11:e0161968. [PMID: 27603310 PMCID: PMC5014343 DOI: 10.1371/journal.pone.0161968] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 08/15/2016] [Indexed: 11/27/2022] Open
Abstract
Background The identification of erythrocyte antibodies in the serum of patients rely on panels of human red blood cells (RBCs), which coexpress many antigens and are not easily available for low-incidence blood group phenotypes. These problems have been addressed by generating cell lines expressing unique blood group antigens, which may be used as an alternative to human RBCs. However, the use of cell lines implies several drawbacks, like the requirement of cell culture facilities and the high cost of cryopreservation. The application of cell stabilization methods could facilitate their use as reagent cells in clinical laboratories. Methods We generated stably-transfected cells expressing low-incidence blood group antigens (Dia and Lua). High-expresser clones were used to assess the effect of TransFix® treatment and lyophilization as cell preservation methods. Cells were kept at 4°C and cell morphology, membrane permeability and antigenic properties were evaluated at several time-points after treatment. Results TransFix® addition to cell suspensions allows cell stabilization and proper antigen detection for at least 120 days, despite an increase in membrane permeability and a reduction in antigen expression levels. Lyophilized cells showed minor morphological changes and antigen expression levels were rather conserved at days 1, 15 and 120, indicating a high stability of the freeze-dried product. These stabilized cells have been proved to react specifically with human sera containing alloantibodies. Conclusions Both stabilization methods allow long-term preservation of the transfected cells antigenic properties and may facilitate their distribution and use as reagent-cells expressing low-incidence antigens, overcoming the limited availability of such rare RBCs.
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Affiliation(s)
- Cecilia González
- Immunohematology Laboratory, Banc de Sang i Teixits, Barcelona, Spain
| | - Rosa Esteban
- Immunohematology Laboratory, Banc de Sang i Teixits, Barcelona, Spain
| | - Carme Canals
- Immunohematology Laboratory, Banc de Sang i Teixits, Barcelona, Spain
| | | | - Núria Nogués
- Immunohematology Laboratory, Banc de Sang i Teixits, Barcelona, Spain
- * E-mail:
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Kapla J, Stevensson B, Maliniak A. Coarse-Grained Molecular Dynamics Simulations of Membrane–Trehalose Interactions. J Phys Chem B 2016; 120:9621-31. [DOI: 10.1021/acs.jpcb.6b06566] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jon Kapla
- Department of Materials and
Environmental Chemistry, Arrhenius Laboratory, Stockholm University, 106
91 Stockholm, Sweden
| | - Baltzar Stevensson
- Department of Materials and
Environmental Chemistry, Arrhenius Laboratory, Stockholm University, 106
91 Stockholm, Sweden
| | - Arnold Maliniak
- Department of Materials and
Environmental Chemistry, Arrhenius Laboratory, Stockholm University, 106
91 Stockholm, Sweden
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Koštál V, Korbelová J, Poupardin R, Moos M, Šimek P. Arginine and proline applied as food additives stimulate high freeze tolerance in larvae of Drosophila melanogaster. J Exp Biol 2016; 219:2358-67. [DOI: 10.1242/jeb.142158] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 05/25/2016] [Indexed: 01/18/2023]
Abstract
ABSTRACT
The fruit fly Drosophila melanogaster is an insect of tropical origin. Its larval stage is evolutionarily adapted for rapid growth and development under warm conditions and shows high sensitivity to cold. In this study, we further developed an optimal acclimation and freezing protocol that significantly improves larval freeze tolerance (an ability to survive at −5°C when most of the freezable fraction of water is converted to ice). Using the optimal protocol, freeze survival to adult stage increased from 0.7% to 12.6% in the larvae fed standard diet (agar, sugar, yeast, cornmeal). Next, we fed the larvae diets augmented with 31 different amino compounds, administered in different concentrations, and observed their effects on larval metabolomic composition, viability, rate of development and freeze tolerance. While some diet additives were toxic, others showed positive effects on freeze tolerance. Statistical correlation revealed tight association between high freeze tolerance and high levels of amino compounds involved in arginine and proline metabolism. Proline- and arginine-augmented diets showed the highest potential, improving freeze survival to 42.1% and 50.6%, respectively. Two plausible mechanisms by which high concentrations of proline and arginine might stimulate high freeze tolerance are discussed: (i) proline, probably in combination with trehalose, could reduce partial unfolding of proteins and prevent membrane fusions in the larvae exposed to thermal stress (prior to freezing) or during freeze dehydration; (ii) both arginine and proline are exceptional among amino compounds in their ability to form supramolecular aggregates which probably bind partially unfolded proteins and inhibit their aggregation under increasing freeze dehydration.
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Affiliation(s)
- Vladimír Koštál
- Biology Centre CAS, Institute of Entomology, České Budějovice 37005, Czech Republic
| | - Jaroslava Korbelová
- Biology Centre CAS, Institute of Entomology, České Budějovice 37005, Czech Republic
| | - Rodolphe Poupardin
- Biology Centre CAS, Institute of Entomology, České Budějovice 37005, Czech Republic
| | - Martin Moos
- Biology Centre CAS, Institute of Entomology, České Budějovice 37005, Czech Republic
| | - Petr Šimek
- Biology Centre CAS, Institute of Entomology, České Budějovice 37005, Czech Republic
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Price HC, Mattsson J, Murray BJ. Sucrose diffusion in aqueous solution. Phys Chem Chem Phys 2016; 18:19207-16. [PMID: 27364512 PMCID: PMC5044753 DOI: 10.1039/c6cp03238a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 06/21/2016] [Indexed: 12/02/2022]
Abstract
The diffusion of sugar in aqueous solution is important both in nature and in technological applications, yet measurements of diffusion coefficients at low water content are scarce. We report directly measured sucrose diffusion coefficients in aqueous solution. Our technique utilises a Raman isotope tracer method to monitor the diffusion of non-deuterated and deuterated sucrose across a boundary between the two aqueous solutions. At a water activity of 0.4 (equivalent to 90 wt% sucrose) at room temperature, the diffusion coefficient of sucrose was determined to be approximately four orders of magnitude smaller than that of water in the same material. Using literature viscosity data, we show that, although inappropriate for the prediction of water diffusion, the Stokes-Einstein equation works well for predicting sucrose diffusion under the conditions studied. As well as providing information of importance to the fundamental understanding of diffusion in binary solutions, these data have technological, pharmaceutical and medical implications, for example in cryopreservation. Moreover, in the atmosphere, slow organic diffusion may have important implications for aerosol growth, chemistry and evaporation, where processes may be limited by the inability of a molecule to diffuse between the bulk and the surface of a particle.
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Affiliation(s)
- Hannah C. Price
- School of Earth and Environment , University of Leeds , Leeds , UK .
| | - Johan Mattsson
- School of Physics and Astronomy , University of Leeds , Leeds , UK .
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Roy A, Dutta R, Kundu N, Banik D, Sarkar N. A Comparative Study of the Influence of Sugars Sucrose, Trehalose, and Maltose on the Hydration and Diffusion of DMPC Lipid Bilayer at Complete Hydration: Investigation of Structural and Spectroscopic Aspect of Lipid-Sugar Interaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:5124-5134. [PMID: 27133799 DOI: 10.1021/acs.langmuir.6b01115] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
It is well-known that sugars protect membrane structures against fusion and leakage. Here, we have investigated the interaction between different sugars (sucrose, trehalose, and maltose) and phospholipid membrane of 1,2-dimyristoyl-sn-glycero-3-phoshpocholine (DMPC) using dynamic light scattering (DLS), transmission electron microscopy (TEM), and other various spectroscopic techniques. DLS measurement reveals that the addition of sugar molecule results a significant increase of the average diameter of DMPC membrane. We have also noticed that in the presence of different sugars the rotational relaxation and solvation time of coumarin 480 (C480) and coumarin 153 (C153) surrounding DMPC membrane increases, suggesting a marked reduction of the hydration behavior at the surface of phospholipid membrane. In addition, we have also investigated the effect of sugar molecules on the lateral mobility of phospholipids. Interestingly, the relative increase in rotational, solvation and lateral diffusion is more prominent for C480 than that of C153 because of their different location in lipid bilayer. It is because of preferential location of comparatively hydrophilic probe C480 in the interfacial region of the lipid bilayer. Sugars intercalate with the phospholipid headgroup through hydrogen bonding and replace smaller sized water molecules from the membrane surface. Therefore, overall, we have monitored a comparative analysis regarding the interaction of different sugar molecules (sucrose, trehalose, and maltose) with the DMPC membrane through DLS, TEM, solvation dynamics, time-resolved anisotropy, and fluorescence correlation spectroscopy (FCS) measurements to explore the structural and spectroscopic aspect of lipid-sugar interaction.
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Affiliation(s)
- Arpita Roy
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, WB, India
| | - Rupam Dutta
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, WB, India
| | - Niloy Kundu
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, WB, India
| | - Debasis Banik
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, WB, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, WB, India
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Kim SJ, Kim BG, Park HJ, Yim JH. Cryoprotective properties and preliminary characterization of exopolysaccharide (P-Arcpo 15) produced by the Arctic bacteriumPseudoalteromonas elyakoviiArcpo 15. Prep Biochem Biotechnol 2016; 46:261-6. [DOI: 10.1080/10826068.2015.1015568] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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MacRae TH. Stress tolerance during diapause and quiescence of the brine shrimp, Artemia. Cell Stress Chaperones 2016; 21:9-18. [PMID: 26334984 PMCID: PMC4679736 DOI: 10.1007/s12192-015-0635-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 08/12/2015] [Accepted: 08/24/2015] [Indexed: 02/06/2023] Open
Abstract
Oviparously developing embryos of the brine shrimp, Artemia, arrest at gastrulation and are released from females as cysts before entering diapause, a state of dormancy and stress tolerance. Diapause is terminated by an external signal, and growth resumes if conditions are permissible. However, if circumstances are unfavorable, cysts enter quiescence, a dormant stage that continues as long as adverse conditions persist. Artemia embryos in diapause and quiescence are remarkably resistant to environmental and physiological stressors, withstanding desiccation, cold, heat, oxidation, ultraviolet radiation, and years of anoxia at ambient temperature when fully hydrated. Cysts have adapted to stress in several ways; they are surrounded by a rigid cell wall impermeable to most chemical compounds and which functions as a shield against ultraviolet radiation. Artemia cysts contain large amounts of trehalose, a non-reducing sugar thought to preserve membranes and proteins during desiccation by replacing water molecules and/or contributing to vitrification. Late embryogenesis abundant proteins similar to those in seeds and other anhydrobiotic organisms are found in cysts, and they safeguard cell organelles and proteins during desiccation. Artemia cysts contain abundant amounts of p26, a small heat shock protein, and artemin, a ferritin homologue, both ATP-independent molecular chaperones important in stress tolerance. The evidence provided in this review supports the conclusion that it is the interplay of these protective elements that make Artemia one of the most stress tolerant of all metazoan organisms.
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Affiliation(s)
- Thomas H MacRae
- Department of Biology, Dalhousie University, Halifax, N.S., B3H 4R2, Canada.
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Roy A, Kundu N, Banik D, Sarkar N. Comparative Fluorescence Resonance Energy-Transfer Study in Pluronic Triblock Copolymer Micelle and Niosome Composed of Biological Component Cholesterol: An Investigation of Effect of Cholesterol and Sucrose on the FRET Parameters. J Phys Chem B 2015; 120:131-42. [PMID: 26672631 DOI: 10.1021/acs.jpcb.5b09761] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Arpita Roy
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Niloy Kundu
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Debasis Banik
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
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Yaari M, Doron-Faigenboim A, Koltai H, Salame L, Glazer I. Transcriptome analysis of stress tolerance in entomopathogenic nematodes of the genus Steinernema. Int J Parasitol 2015; 46:83-95. [PMID: 26598027 DOI: 10.1016/j.ijpara.2015.08.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Revised: 08/13/2015] [Accepted: 08/14/2015] [Indexed: 11/16/2022]
Abstract
Entomopathogenic nematodes of the genus Steinernema are effective biological control agents. The infective stage of these parasites can withstand environmental stresses such as desiccation and heat, but the molecular and physiological mechanisms involved in this tolerance are poorly understood. We used 454 pyrosequencing to analyse transcriptome expression in Steinernema spp. that differ in their tolerance to stress. We compared these species, following heat and desiccation treatments, with their non-stressed counterparts. More than 98% of the transcripts found matched homologous sequences in the UniRef90 database, mostly nematode genes (85%). Among those, 60.8% aligned to the vertebrate parasites including Ascaris suum, Loa loa, and Brugia malayi, 23.3% aligned to bacteriovores, mostly from the genus Caenorhabditis, and 1% aligned to EPNs. Analysing gene expression patterns of the stress response showed a large fraction of down-regulated genes in the desiccation-tolerant nematode Steinernema riobrave, whereas a larger fraction of the genes in the susceptible Steinernema feltiae Carmiel and Gvulot strains were up-regulated. We further compared metabolic pathways and the expression of specific stress-related genes. In the more tolerant nematode, more genes were down-regulated whereas in the less tolerant strains, more genes were up-regulated. This phenomenon warrants further exploration of the mechanism governing induction of the down-regulation process. The present study revealed many genes and metabolic cycles that are differentially expressed in the stressed nematodes. Some of those are well known in other nematodes or anhydrobiotic organisms, but several are new and should be further investigated for their involvement in desiccation and heat tolerance. Our data establish a foundation for further exploration of stress tolerance in entomopathogenic nematodes and, in the long term, for improving their ability to withstand suboptimal environmental conditions.
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Affiliation(s)
- Mor Yaari
- Department of Entomology and Nematology, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
| | - Adi Doron-Faigenboim
- Department of Ornamental Horticulture, Agricultural Research Organization, Israel
| | - Hinanit Koltai
- Department of Ornamental Horticulture, Agricultural Research Organization, Israel
| | - Liora Salame
- Department of Entomology and Nematology, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel
| | - Itamar Glazer
- Department of Entomology and Nematology, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan 50250, Israel.
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Somfai T, Men NT, Noguchi J, Kaneko H, Kashiwazaki N, Kikuchi K. Optimization of cryoprotectant treatment for the vitrification of immature cumulus-enclosed porcine oocytes: comparison of sugars, combinations of permeating cryoprotectants and equilibration regimens. J Reprod Dev 2015; 61:571-9. [PMID: 26411536 PMCID: PMC4685224 DOI: 10.1262/jrd.2015-089] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Our aim was to optimize the cryoprotectant treatment for the preservation of immature porcine cumulus-oocyte
complexes (COCs) by solid surface vitrification. In each experiment, the vitrification solution consisted of
50 mg/ml polyvinyl pyrrolidone, 0.3 M of the actual sugar and in total 35% (v/v) of the actual permeating
cryoprotectant (pCPA) combination. After warming, the COCs were subjected to in vitro
maturation, fertilization and embryo culture. In Experiment 1, trehalose and sucrose were equally effective
during vitrification and warming in terms of facilitating oocyte survival and subsequent embryo development.
In Experiment 2, when equilibration was performed at 38.5 C in a total of 4% (v/v) pCPA for 15 min, the
combination of ethylene glycol and propylene glycol (EG + PG = 1:1) was superior to EG and dimethyl sulfoxide
(EG + DMSO = 1:1) in terms of oocyte survival after vitrification and the quality of resultant blastocysts. In
Experiment 3, equilibration in 4% (v/v) pCPA for 15 min before vitrification was superior to that in 15% (v/v)
CPA for 5 min for achievement of high survival rates irrespective of the pCPA combination used. In Experiment
4, when equilibration was performed in 4% EG + PG for 5 min, 15 min or 25 min, there was no difference in
oocyte survival and subsequent embryo development after vitrification and warming; however, the developmental
competence of cleaved embryos was tendentiously reduced when equilibration was performed for 25 min. In
conclusion, trehalose and sucrose were equally effective in facilitating vitrification, and the optimum pCPA
treatment was 5–15 min equilibration in 4% (v/v) of EG + PG followed by vitrification in 35% (v/v) EG +
PG.
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Affiliation(s)
- Tamás Somfai
- NARO Institute of Livestock and Grassland Science, Ibaraki 305-0901, Japan
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Kapla J, Engström O, Stevensson B, Wohlert J, Widmalm G, Maliniak A. Molecular dynamics simulations and NMR spectroscopy studies of trehalose-lipid bilayer systems. Phys Chem Chem Phys 2015; 17:22438-47. [PMID: 26252429 DOI: 10.1039/c5cp02472b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The disaccharide trehalose (TRH) strongly affects the physical properties of lipid bilayers. We investigate interactions between lipid membranes formed by 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC) and TRH using NMR spectroscopy and molecular dynamics (MD) computer simulations. We compare dipolar couplings derived from DMPC/TRH trajectories with those determined (i) experimentally in TRH using conventional high-resolution NMR in a weakly ordered solvent (bicelles), and (ii) by solid-state NMR in multilamellar vesicles (MLV) formed by DMPC. Analysis of the experimental and MD-derived couplings in DMPC indicated that the force field used in the simulations reasonably well describes the experimental results with the exception for the glycerol fragment that exhibits significant deviations. The signs of dipolar couplings, not available from the experiments on highly ordered systems, were determined from the trajectory analysis. The crucial step in the analysis of residual dipolar couplings (RDCs) in TRH determined in a bicelle-environment was access to the conformational distributions derived from the MD trajectory. Furthermore, the conformational behavior of TRH, investigated by J-couplings, in the ordered and isotropic phases is essentially identical, indicating that the general assumptions in the analyses of RDCs are well founded.
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Affiliation(s)
- Jon Kapla
- Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden.
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de Arruda Moura Pietrowski G, Grochoski M, Sartori GF, Gomes TA, Wosiacki G, Nogueira A. Viability ofHanseniaspora uvarumyeast preserved by lyophilization and cryopreservation. Yeast 2015; 32:559-65. [DOI: 10.1002/yea.3079] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 05/24/2015] [Accepted: 05/29/2015] [Indexed: 11/08/2022] Open
Affiliation(s)
| | - Mayara Grochoski
- Department of Food; Federal Technological University of Paraná; Ponta Grossa Campus PR Brazil
| | - Gabriela Felkl Sartori
- Department of Food; Federal Technological University of Paraná; Ponta Grossa Campus PR Brazil
| | | | - Gilvan Wosiacki
- Department of Food Science and Technology; State University of Ponta Grossa; PR Brazil
| | - Alessandro Nogueira
- Department of Food Science and Technology; State University of Ponta Grossa; PR Brazil
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Odintsova NA, Ageenko NV, Kipryushina YO, Maiorova MA, Boroda AV. Freezing tolerance of sea urchin embryonic cells: Differentiation commitment and cytoskeletal disturbances in culture. Cryobiology 2015; 71:54-63. [PMID: 26049089 DOI: 10.1016/j.cryobiol.2015.06.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 05/15/2015] [Accepted: 06/02/2015] [Indexed: 11/29/2022]
Abstract
This study focuses on the freezing tolerance of sea urchin embryonic cells. To significantly reduce the loss of physiological activity of these cells that occurs after cryopreservation and to study the effects of ultra-low temperatures on sea urchin embryonic cells, we tested the ability of the cells to differentiate into spiculogenic or pigment directions in culture, including an evaluation of the expression of some genes involved in pigment differentiation. A morphological analysis of cytoskeletal disturbances after freezing in a combination of penetrating (dimethyl sulfoxide and ethylene glycol) and non-penetrating (trehalose and polyvinylpyrrolidone) cryoprotectants revealed that the distribution pattern of filamentous actin and tubulin was similar to that in the control cultures. In contrast, very rare spreading cells and a small number of cells with filamentous actin and tubulin were detected after freezing in the presence of only non-penetrating cryoprotectants. The largest number of pigment cells was found in cultures frozen with trehalose or trehalose and dimethyl sulfoxide. The ability to induce the spicule formation was lost in the cells frozen only with non-penetrating cryoprotectants, while it was maximal in cultures frozen in a cryoprotective mixture containing both non-penetrating and penetrating cryoprotectants (particularly, when ethylene glycol was present). Using different markers for cell state assessment, an effective cryopreservation protocol for sea urchin cells was developed: three-step freezing with a low cooling rate (1-2°C/min) and a combination of non-penetrating and penetrating cryoprotectants made it possible to obtain a high level of cell viability (up to 65-80%).
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Affiliation(s)
- Nelly A Odintsova
- Laboratory of Cytotechnology, A.V. Zhirmunsky Institute of Marine Biology, The Far Eastern Branch of the Russian Academy of Sciences, 690041, Palchevsky st. 17, Vladivostok, Russia.
| | - Natalya V Ageenko
- Laboratory of Cytotechnology, A.V. Zhirmunsky Institute of Marine Biology, The Far Eastern Branch of the Russian Academy of Sciences, 690041, Palchevsky st. 17, Vladivostok, Russia
| | - Yulia O Kipryushina
- Laboratory of Cytotechnology, A.V. Zhirmunsky Institute of Marine Biology, The Far Eastern Branch of the Russian Academy of Sciences, 690041, Palchevsky st. 17, Vladivostok, Russia
| | - Mariia A Maiorova
- Laboratory of Cytotechnology, A.V. Zhirmunsky Institute of Marine Biology, The Far Eastern Branch of the Russian Academy of Sciences, 690041, Palchevsky st. 17, Vladivostok, Russia
| | - Andrey V Boroda
- Laboratory of Cytotechnology, A.V. Zhirmunsky Institute of Marine Biology, The Far Eastern Branch of the Russian Academy of Sciences, 690041, Palchevsky st. 17, Vladivostok, Russia
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Groot CCM, Bakker HJ. Hydration dynamics of aqueous glucose probed with polarization-resolved fs-IR spectroscopy. J Chem Phys 2015; 140:234503. [PMID: 24952548 DOI: 10.1063/1.4882697] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The dynamics of water in aqueous solutions of glucose have been investigated using polarization-resolved femtosecond infrared spectroscopy of the hydroxyl stretch vibrations of water and glucose. Using reference measurements on solutions of glucose in dimethylsulfoxide and a spectral decomposition model, we are able to distinguish the reorientation dynamics of the glucose and water hydroxyl groups. We find that the water reorientation dynamics strongly slow down in the presence of glucose.
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Affiliation(s)
- C C M Groot
- FOM Institute AMOLF, Ultrafast Spectroscopy Group, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - H J Bakker
- FOM Institute AMOLF, Ultrafast Spectroscopy Group, Science Park 104, 1098 XG Amsterdam, The Netherlands
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39
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Analysis by non-linear irreversible thermodynamics of compositional and structural changes occurred during air drying of vacuum impregnated apple (cv. Granny smith): Calcium and trehalose effects. J FOOD ENG 2015. [DOI: 10.1016/j.jfoodeng.2014.09.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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40
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Paul S, Paul S. Molecular Insights into the Role of Aqueous Trehalose Solution on Temperature-Induced Protein Denaturation. J Phys Chem B 2015; 119:1598-610. [DOI: 10.1021/jp510423n] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Subrata Paul
- Department
of Chemistry, Indian Institute of Technology, Guwahati, Assam India-781039
| | - Sandip Paul
- Department
of Chemistry, Indian Institute of Technology, Guwahati, Assam India-781039
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Wikström J, Elomaa M, Nevala L, Räikkönen J, Heljo P, Urtti A, Yliperttula M. Viability of freeze dried microencapsulated human retinal pigment epithelial cells. Eur J Pharm Sci 2012; 47:520-6. [DOI: 10.1016/j.ejps.2012.06.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2011] [Revised: 06/11/2012] [Accepted: 06/25/2012] [Indexed: 12/19/2022]
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42
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Tao H, Fu Y, Thompson A, Lee SC, Mahoney N, Stevens RC, Zhang Q. Synthesis and properties of dodecyl trehaloside detergents for membrane protein studies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:11173-81. [PMID: 22780816 PMCID: PMC3418823 DOI: 10.1021/la3020404] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Sugar-based detergents, mostly derived from maltose or glucose, prevail in the extraction, solubilization, stabilization, and crystallization of membrane proteins. Inspired by the broad use of trehalose for protecting biological macromolecules and lipid bilayer structures, we synthesized new trehaloside detergents for potential applications in membrane protein research. We devised an efficient synthesis of four dodecyl trehalosides, each with the 12-carbon alkyl chain attached to different hydroxyl groups of trehalose, thus presenting a structurally diverse but related family of detergents. The detergent physical properties, including solubility, hydrophobicity, critical micelle concentration (CMC), and size of micelles, were evaluated and compared with the most popular maltoside analogue, β-D-dodecyl maltoside (DDM), which varied from each other due to distinct molecular geometries and possible polar group interactions in resulting micelles. Crystals of 2-dodecyl trehaloside (2-DDTre) were also obtained in methanol, and the crystal packing revealed multiple H-bonded interactions among adjacent trehalose groups. The few trehaloside detergents were tested for the solubilization and stabilization of the nociceptin/orphanin FQ peptide receptor (ORL1) and MsbA, which belong to the G-protein coupled receptor (GPCR) and ATP-binding cassette transporter families, respectively. Our results demonstrated the utility of trehaloside detergents as membrane protein solubilization reagents with the optimal detergents being protein dependent. Continuing development and investigations of trehaloside detergents are attractive, given their interesting and unique chemical-physical properties and potential interactions with membrane lipids.
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Affiliation(s)
- Houchao Tao
- Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Yu Fu
- Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Aaron Thompson
- Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Sung Chang Lee
- Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Nicholas Mahoney
- Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
- Department of Chemistry, University of Southern Maine, Portland, ME 04104
| | - Raymond C. Stevens
- Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Qinghai Zhang
- Department of Molecular Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
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Berndt F, Sajadi M, Ernsting NP, Mahrwald R. Covalent linkage of N-methyl-6-oxyquinolinium betaine to trehalose. Carbohydr Res 2011; 346:2960-4. [DOI: 10.1016/j.carres.2011.10.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Revised: 10/07/2011] [Accepted: 10/12/2011] [Indexed: 10/16/2022]
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Ahluwalia U, Prakash C, Agrawal R, Deep S. Characterization of cytochrome c folding intermediates induced by sucrose and phosphate. Int J Biol Macromol 2011; 49:752-60. [DOI: 10.1016/j.ijbiomac.2011.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Revised: 07/09/2011] [Accepted: 07/11/2011] [Indexed: 10/17/2022]
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Sanchez-Partida LG, Kelly RDW, Sumer H, Lo CY, Aharon R, Holland MK, O'Bryan MK, St. John JC. The generation of live offspring from vitrified oocytes. PLoS One 2011; 6:e21597. [PMID: 21738724 PMCID: PMC3124530 DOI: 10.1371/journal.pone.0021597] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Accepted: 06/06/2011] [Indexed: 12/29/2022] Open
Abstract
Oocyte cryopreservation is extremely beneficial for assisted reproductive technologies, the treatment of infertility and biotechnology and offers a viable alternative to embryo freezing and ovarian grafting approaches for the generation of embryonic stem cells and live offspring. It also offers the potential to store oocytes to rescue endangered species by somatic cell nuclear transfer and for the generation of embryonic stem cells to study development in these species. We vitrified mouse oocytes using a range of concentrations of trehalose (0 to 0.3 M) and demonstrated that 0.1 and 0.3 M trehalose had similar developmental rates, which were significantly different to the 0.2 M cohort (P<0.05). As mitochondria are important for fertilisation outcome, we observed that the clustering and distribution of mitochondria of the 0.2 M cohort were more affected by vitifrication than the other groups. Nevertheless, all 3 cohorts were able to develop to blastocyst, following in vitro fertilisation, although developmental rates were better for the 0.1 and 0.3 M cohorts than the 0.2 M cohort (P<0.05). Whilst blastocysts gave rise to embryonic stem-like cells, it was apparent from immunocytochemistry and RT-PCR that these cells did not demonstrate true pluripotency and exhibited abnormal karyotypes. However, they gave rise to teratomas following injection into SCID mice and differentiated into cells of each of the germinal layers following in vitro differentiation. The transfer of 2-cell embryos from the 0.1 and 0.3 M cohorts resulted in the birth of live offspring that had normal karyotypes (9/10). When 2-cell embryos from vitrified oocytes underwent vitrification, and were thawed and transferred, live offspring were obtained that exhibited normal karyotypes, with the exception of one offspring who was larger and died at 7 months. We conclude that these studies highlight the importance of the endometrial environment for the maintenance of genetic stability and thus the propagation of specific genetic traits.
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Affiliation(s)
- L. Gabriel Sanchez-Partida
- Centre for Reproduction and Development, Monash Institute of Medical Research, Monash University, Victoria, Australia
- Australian Phenomics Network, Monash Animal Research Platform, Monash University, Victoria, Australia
| | - Richard D. W. Kelly
- Centre for Reproduction and Development, Monash Institute of Medical Research, Monash University, Victoria, Australia
- Mitochondrial and Reproductive Genetics Group, Clinical Sciences Research Institute, Warwick Medical School, University of Warwick, Coventry, United Kingdom
| | - Huseyin Sumer
- Centre for Reproduction and Development, Monash Institute of Medical Research, Monash University, Victoria, Australia
| | - Camden Y. Lo
- School of Mathematical Sciences, Monash University, Victoria, Australia
| | - Rotem Aharon
- Monash Micro Imaging – MHTP, Monash Institute of Medical Research, Clayton, Victoria, Australia
| | - Michael K. Holland
- School of Veterinary Sciences, The University of Queensland, St. Lucia Campus, Brisbane, Queensland, Australia
| | - Moira K. O'Bryan
- The Department of Anatomy and Developmental Biology, Monash University, Victoria, Australia
| | - Justin C. St. John
- Centre for Reproduction and Development, Monash Institute of Medical Research, Monash University, Victoria, Australia
- Mitochondrial and Reproductive Genetics Group, Clinical Sciences Research Institute, Warwick Medical School, University of Warwick, Coventry, United Kingdom
- * E-mail:
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Luyckx J, Baudouin C. Trehalose: an intriguing disaccharide with potential for medical application in ophthalmology. Clin Ophthalmol 2011; 5:577-81. [PMID: 21654884 PMCID: PMC3102588 DOI: 10.2147/opth.s18827] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Indexed: 01/01/2023] Open
Abstract
Trehalose is a naturally occurring disaccharide comprised of two molecules of glucose. The sugar is widespread in many species of plants and animals, where its function appears to be to protect cells against desiccation, but is not found in mammals. Trehalose has the ability to protect cellular membranes and labile proteins against damage and denaturation as a result of desiccation and oxidative stress. Trehalose appears to be the most effective sugar for protection against desiccation. Although the exact mechanism by which trehalose protects labile macromolecules and lipid membranes is unknown, credible hypotheses do exist. As well as being used in large quantities in the food industry, trehalose is used in the biopharmaceutical preservation of labile protein drugs and in the cryopreservation of human cells. Trehalose is under investigation for a number of medical applications, including the treatment of Huntington’s chorea and Alzheimer’s disease. Recent studies have shown that trehalose can also prevent damage to mammalian eyes caused by desiccation and oxidative insult. These unique properties of trehalose have thus prompted its investigation as a component in treatment for dry eye syndrome. This interesting and unique disaccharide appears to have properties which may be exploited in ophthalmology and other disease states.
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Pizzuto MS, De Benedictis P, Maniero S, Toson M, Dundon WG, M’Baye Seck B, Capua I. Improving heat stability of haemagglutinating antigens for avian influenza. Biologicals 2011; 39:149-51. [DOI: 10.1016/j.biologicals.2011.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2010] [Revised: 11/24/2010] [Accepted: 02/14/2011] [Indexed: 11/30/2022] Open
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Ohtake S, Martin R, Saxena A, Pham B, Chiueh G, Osorio M, Kopecko D, Xu D, Lechuga-Ballesteros D, Truong-Le V. Room temperature stabilization of oral, live attenuated Salmonella enterica serovar Typhi-vectored vaccines. Vaccine 2011; 29:2761-71. [PMID: 21300096 DOI: 10.1016/j.vaccine.2011.01.093] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Revised: 01/25/2011] [Accepted: 01/27/2011] [Indexed: 11/28/2022]
Abstract
Foam drying, a modified freeze drying process, was utilized to produce a heat-stable, live attenuated Salmonella Typhi 'Ty21a' bacterial vaccine. Ty21a vaccine was formulated with pharmaceutically approved stabilizers, including sugars, plasticizers, amino acids, and proteins. Growth media and harvesting conditions of the bacteria were also studied to enhance resistance to desiccation stress encountered during processing as well as subsequent storage at elevated temperatures. The optimized Ty21a vaccine, formulated with trehalose, methionine, and gelatin, demonstrated stability for approximately 12 weeks at 37°C (i.e., time required for the vaccine to decrease in potency by 1log(10)CFU) and no loss in titer at 4 and 25°C following storage for the same duration. Furthermore, the foam dried Ty21a elicited a similar immunogenic response in mice as well as protection in challenge studies compared to Vivotif™, the commercial Ty21a vaccine. The enhanced heat stability of the Ty21a oral vaccine, or Ty21a derivatives expressing foreign antigens (e.g. anthrax), could mitigate risks of vaccine potency loss during long-term storage, shipping, delivery to geographical areas with warmer climates or during emergency distribution following a bioterrorist attack. Because the foam drying process is conducted using conventional freeze dryers and can be readily implemented at any freeze drying manufacturing facility, this technology appears ready and appropriate for large scale processing of foam dried vaccines.
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Banipal PK, Hundal AKCN, Banipal TS. Effect of magnesium chloride (2:1 electrolyte) on the aqueous solution behavior of some saccharides over the temperature range of 288.15–318.15 K: a volumetric approach. Carbohydr Res 2010; 345:2262-71. [DOI: 10.1016/j.carres.2010.07.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2010] [Revised: 07/07/2010] [Accepted: 07/13/2010] [Indexed: 10/19/2022]
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